DIN EN 448 (2003-05)被替代
Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
SN EN 448:2003 - Identical
NEN EN 448:2003 - Identical
ONORM EN 448:2003 - Identical
BS EN 448:2003 - Identical
I.S. EN 448:2003 - Identical
NBN EN 448:2003 - Identical
NS EN 448 Ed. 2 (2003) - Identical
UNE EN 448:2005 - Identical
SS EN 448 Ed. 2 (2003) - Identical
ONORM EN 448:2009 - Identical
UNI EN 448:2003 - Identical
NF EN 448:2003 - Identical
